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2928853693 = 22731288541
BaseRepresentation
bin1010111010010010…
…1100001010111101
321120010011011221201
42232210230022331
521444241304233
61202343255501
7132402563023
oct25644541275
97503134851
102928853693
111273297147
12698a4a591
13378a3402c
141dada6713
151221dd77d
hexae92c2bd

2928853693 has 4 divisors (see below), whose sum is σ = 2930144508. Its totient is φ = 2927562880.

The previous prime is 2928853691. The next prime is 2928853699. The reversal of 2928853693 is 3963588292.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2233318564 + 695535129 = 47258^2 + 26373^2 .

It is a cyclic number.

It is not a de Polignac number, because 2928853693 - 21 = 2928853691 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2928853691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 641998 + ... + 646543.

It is an arithmetic number, because the mean of its divisors is an integer number (732536127).

Almost surely, 22928853693 is an apocalyptic number.

It is an amenable number.

2928853693 is a deficient number, since it is larger than the sum of its proper divisors (1290815).

2928853693 is a wasteful number, since it uses less digits than its factorization.

2928853693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290814.

The product of its digits is 5598720, while the sum is 55.

The square root of 2928853693 is about 54118.8848092789. The cubic root of 2928853693 is about 1430.7570433606.

The spelling of 2928853693 in words is "two billion, nine hundred twenty-eight million, eight hundred fifty-three thousand, six hundred ninety-three".

Divisors: 1 2273 1288541 2928853693